The first monoplane aircraft ordered by the US Navy for carrier operations, the Douglas TBD Devastator was designed to fulfil a requirement for a new torpedo bomber. Just 129 were built, and when it entered service it was the most modern aircraft of its type anywhere in the world. Its only real taste of action came on 4 June 1942 in the pivotal Battle of Midway, when 35 were shot down in a clash with Japanese A6M Zero fighters. The aircraft was replaced by the Grumman Avenger weeks later.